Techno-economical analysis on the production of hydrogen

Hydrogen is an interesting and promising alternative for fuels. Currently, most hydrogen is produced via a process called steam reforming, where a reaction between methane and water occurs, with carbon monoxide and carbon dioxide as waste products and released in the atmosphere. This work presents a study on the sustainable production of...

The design and evaluation of a variable stiffness mechanism for a knee-ankle prosthesis: Adjustable stiffness for lower limb prostheses

Semi-active lower limb prostheses currently use variable damping to generate the gait cycle. This, however, only dissipates energy. Variable stiffness can store and release energy, making prostheses more efficient for walking. This study aims to design and evaluate a semi-active adjustable stiffness ankle-knee prosthesis that can change its...

Development and testing of a prototype of a dental extraction trainer with real-time feedback on forces, torques, and angular velocity

The need for a training modality for tooth extraction procedures is increasing, as dental students do not feel properly trained. In this study, a prototype of a training setup is designed, in which extraction procedures can be performed on jaw models and cadaveric jaws. The prototype was designed in a way that it can give real-time feedback on...

Analysis of elastoplastic response of maritime structures in breaking waves using a double pendulum with a friction hinge

Waves impacting on maritime structures can cause damage which endangers the environment around these structures. Due to high hydrodynamic loading, structures can enter the plastic regime, resulting possibly in structural failure. The understanding of the principles related to this structural failure due to waves is a key concept in this research...

An integral approach to design the Roggenplaat intertidal shoal nourishment

The Eastern Scheldt, a tidal basin in the southwest of The Netherlands, underwent large physical and ecological changes due to a system-wide human interference. The construction of a storm surge barrier at the seaward side and closure of the upstream branches in the 1980s resulted in intertidal flat erosion. This has far reaching consequences...

Continuous correction function for the influence of gaps and overlaps for the optimization of curved variable stiffness laminates

An approach to optimizing variable stiffness laminates for strength is modified to allow for the optimization of curved structures. A density function to take in account the effect of gaps and overlaps during optimization created by fibre steering is found with the functional approximation method. The density plot of a plate for 2 standard cases...

Primitive idempotent tables of cyclic and constacyclic codes

For any (Formula presented.) a (Formula presented.)-constacyclic code (Formula presented.), of length (Formula presented.) is a set of polynomials in the ring (Formula presented.), which is generated by some polynomial divisor (Formula presented.) of (Formula presented.). In this paper a general expression is presented for the uniquely...

Thermal Cycling and Creep Behaviour of Alloy 617 Boiler Components

Because of its proven beneficial material properties, Alloy 617 is the most promising material for the use in pressurised steam boiler components subject to cyclic loads and temperatures that are increasing due to an improved process efficiency. The result of this research project is the successful expression of the material properties of Alloy...

Evaluatie van prestaties van de politie: Deel 2 van de evaluatie van de Politiewet 2012

Met de invoering van de Politiewet 2012 (Pw2012) wilde de minister van Veiligheid en Justitie (VenJ) zorgen voor een effectieve, efficiënte en maatschappelijk gewaardeerde politieorganisatie, die zowel rechtstatelijk als democratisch goed is ingebed.<br/>Artikel 74 van de Pw2012 bepaalt dat de minister van VenJ binnen vijf jaar na...

Alternatief ontwerp voor stalen zinkerleiding t.b.v. vergroting werkbaarheid (summary)

The separability of standard cyclic N-ary Gray codes

Alternatief ontwerp voor stalen zinkerleiding t.b.v. vergroting werkbaarheid

Universal rider robot

Universal rider robot (summary)

Metingen van stationaire bandkarakteristieken en enkele dynamische eigenschappen van kartbanden (summary)

Metingen van stationaire bandkarakteristieken en enkele dynamische eigenschappen van kartbanden

Minimal-change order and separability in linear codes

Index system and separability of constant weight Gray codes